Screwdriver

50 ml (~1.75 oz) vodka
100 ml (~3.5 oz) orange juice

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Notes

Build over ice in a highball glass, stir gently, and garnish with an orange slice. The name reportedly comes from American oil workers in the Persian Gulf in the 1940s, who stirred vodka into their orange juice with a screwdriver. It became one of the defining highballs of the mid-century vodka boom and the base for variations like the Harvey Wallbanger.